import sys
input = sys.stdin.readline
from collections import *

"""
def f(x):
    if x in memo:
        return memo[x]
    res = False
    for k in range(x+1):
        if 3**k<=x:
            res |= not f(x-3**k)
    memo[x] = res
    return res

memo = defaultdict(int)
memo[0] = False

for i in range(100):
    print(f(i))
"""

N = int(input())

if N%2==1:
    print('NO')
else:
    print('YES')